<!DOCTYPE html>
<html lang="zh">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
        <style>
            #box1 {
                width: 200px;
                height: 200px;
                padding: 100px;
                border: 10px red solid;
                background-color: #bfa;
            }

            #box2 {
                width: 100px;
                height: 100px;
                background-color: orange;
            }

            #box3 {
                width: 100px;
                height: 100px;
                background-color: yellow;
            }
        </style>
        <script src="./scripts/jquery-3.6.1.js"></script>
        <script>
            $(function () {
                $("#btn").click(function () {
                    /* 
                        css 可以用来读取或设置元素的样式
                    */

                    var $width = $("#box1").css("width")

                    // alert($("#box1").css("background-color"))
                    // alert($("#box1").css("left"))

                    // $("#box1").css("width", 300)

                    // $("#box1").css({width:300, height:500, backgroundColor:"yellow"})

                    // alert($("#box1").innerHeight())

                    // $("#box1").innerHeight(500)

                    // alert($("#box1").offset().top + '--' + $("#box1").offset().left)

                    $("#box1").offset({ top: 500, left: 300 })
                })

                $("#btn2").click(function () {})

                $("#btn3").click(function () {})
            })
        </script>
    </head>
    <body>
        <button id="btn">点我</button>
        <button id="btn2">点我2</button>
        <hr />

        <div id="box1"></div>

        <hr />

        <hr />

        <button id="btn3">点我3</button>
    </body>
</html>
